Found the time today to get the parts all put together and take some pictures of my new 16" A4 Mid-length. I started with a Armalite stripped lower and used RRA parts for the rest including a 16" mid-length complete upper. The scope mount is the RRA cantilever model. It's very sturdy. Of course I also used the Hogue grip and the Magpul rear pop-up sight. I can't wait to get to the range and give her her a try. I tried something a little different on the front sight post too, I installed a KNS Precision .052 bead. I'm anxious to see if it works better than the big fat square factory post.